JK Rowling's Nineties Harry Potter sketches and how they compare to the films

Could Rowling have had any idea of how beloved her hook-nosed, greasy-haired potions professor would become? Alan Rickman, who played him in the films, guaranteed his position as a Byronic hero with Potter fans - he was also the only other person to know about the huge Snapian twist in book seven aside from the author.